Phase-error compensation of a pulsed power amplifier with a vector modulator in radar applications

Paweł Zawada , Paweł Gontarek , Paweł Barmuta , Maciej Grzegrzółka , Arkadiusz Lewandowski

Abstract

This paper describes a phase-error compensation method employing the digital predistortion for pulsed power amplifiers in radar applications. The predistortion method was evaluated for the power amplifier based on the commercially available Avago ATF52189 HEMT at frequency 1.3 GHz. The measurement setup and the extraction procedure of the inverse model of the power-amplifier phase distortion is presented. Using proposed method the maximum phase-error was reduced from 5 to 0.8 , while the gain changes only within 0.1 dB.
Author Paweł Zawada ISE - [Departament of Microwave Active Devices, PIT-RADWAR S.A]
Paweł Zawada,,
- The Institute of Electronic Systems
- PIT-RAWAR
, Paweł Gontarek ISE - [PIT-RAWAR]
Paweł Gontarek,,
- The Institute of Electronic Systems
- PIT-RAWAR
, Paweł Barmuta ISE
Paweł Barmuta,,
- The Institute of Electronic Systems
, Maciej Grzegrzółka ISE
Maciej Grzegrzółka,,
- The Institute of Electronic Systems
, Arkadiusz Lewandowski ISE
Arkadiusz Lewandowski,,
- The Institute of Electronic Systems
Pages1-4
Publication size in sheets0.5
Book Organizing Committee of Conference MIKON: Proc. 21st International Conference on Microwaves, Radar and Wireless Communications, 2016, IEEE, ISBN 9781509022151, 732 p.
Keywords in Englishpower amplifier, digital predistortion, vector modulator
DOIDOI:10.1109/MIKON.2016.7491941
URL http://ieeexplore.ieee.org/search/searchresult.jsp?searchWithin=%22Authors%22:.QT.Pawe.AND..HSH.322;%20Gontarek.QT.&newsearch=true
Languageen angielski
File
lewandowski_Grzegrz_mikon_2016.pdf (file archived - login or check accessibility on faculty) lewandowski_Grzegrz_mikon_2016.pdf 1.69 MB
Score (nominal)15
ScoreMinisterial score = 15.0, 27-03-2017, BookChapterMatConf
Ministerial score (2013-2016) = 15.0, 27-03-2017, BookChapterMatConf
Citation count*0
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